From a diagram similar to Clock Iw $51, 24($50) Iw $S2, 28($50) add $S3, $S2, $S1 sw $S3, 32($50) CCO CC1CC2CC3 CC4 CC5 CC6 CC7 CC8 CC9CC10 CC11CC12 CC13 IF ID EX MEMWB Given that forwarding is implemented, choose the correct value of the CPI for the sequence. 2.25 2.5 2.0 None of the above